- Category: Water Feature
- Type: Inland Water
- Latitude/Longitude: 55°54'53"N 3°37'38"W
- Eastings/Northings: 298382, 670274
- OS Grid: NS983702
- Mapcode Local: GBR 3031.GK
- Mapcode Global: WH5RG.7LXH
Location and coordinates are for the approximate centre of Sunnyside Reservoir within this administrative area.
Geographic features and populated places may cross administrative borders.